MANGROVE CARBON BIOMASS POTENCY THROUGH SATELLITE IMAGE ANALYSIS IN THE EASTERN AREA OF MAUMERE BAY

  • Vincentius A
  • Parera G
  • Woda M
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Abstract

Mangrove ecosystems can store significant amounts of carbon in their standing biomass. The eastern part of Maumere Bay contains mangrove areas that are important because of their economic and ecological value. The amount of carbon stored in the mangroves is unknown due to the lack of inventory data. The objective of this study is to obtain estimated surface carbon biomass stocks in the mangrove forests in the eastern part of Maumere Bay using Sentinel-2A imagery. The study was conducted from June to September 2024. Carbon stock values ​​were obtained using the Normalized Difference Vegetation Index (NDVI) analysis method. Actual carbon stocks in surface biomass were obtained from the allometric equation. A stratified sampling method was applied to determine 18 sample spots, each with a size of 10×10 m2. Data was analyzed using accuracy tests and linear, polynomial, and exponential regression. The results of the regression analysis show that the exponential regression equation has the highest coefficient of determination (R2) value, namely 0.8373, with the highest accuracy. Therefore, the exponential regression equation was accepted as a model for estimating surface carbon stocks. The NDVI vegetation index has a strong correlation with carbon stocks of 83.73% (R2 = 0.8373). The exponential equation is y = 13.637e2.0499x, which reflects natural growth patterns where y is the carbon value and x is the NDVI value. The mangrove area covers 527.93 ha. The total aboveground carbon stock amounts to 29,760.52 tons of carbon, with an average value of 56.34 tons of carbon per hectare.Ekosistem mangrove dapat menyimpan banyak karbon pada biomassa tegakan. Bagian timur Teluk Maumere memiliki kawasan mangrove yang sangat penting untuk dijaga demi memelihara nilai ekonomis dan ekologisnya. Jumlah karbon yang tersimpan pada mangrove belum diketahui karena tidak ada data inventarisasi. Tujuan penelitian adalah untuk mendapatkan data estimasi cadangan biomassa karbon permukaan pada hutan mangrove di bagian timur Teluk Maumere, menggunakan citra Sentinel-2A. Penelitian dilakukan pada Juni hingga September 2024. Nilai cadangan karbon diperoleh dari metode analisis NDVI (Normalized Difference Vegetation Index). Cadangan karbon aktual biomass permukaan diperoleh dari persamaan alometrik. Metode sampel stratified digunakan untuk menentukan 18 titik sampel, yang berupa plot berukuran 10×10 m2. Analisis data dilakukan dengan menggunakan uji akurasi, linear, polinomial, dan regresi eksponensial. Hasil analisis regresi menunjukkan bahwa persamaan regresi eksponensial memiliki nilai koefisien determinasi (R2) tertinggi, yaitu 0,8373 dengan nilai akurasi tertinggi. Oleh karena itu, persamaan regresi eksponensial diterima sebagai model penduga stok karbon permukaan. Indeks vegetasi NDVI memiliki korelasi yang kuat dengan cadangan karbon sebesar 83,73% (R2 = 0,8373). Persamaan eksponensial y = 13,637e2,0499x yang mencerminkan pola pertumbuhan alami dengan y adalah nilai karbon dan x adalah nilai NDVI. Luas hamparan mangrove sebesar 527,93 ha. Total cadangan karbon di atas permukaan mencapai 29.760,52 ton karbon, dengan nilai rata-rata 56,34 ton karbon per ha.

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APA

Vincentius, A., Parera, G. R. J., & Woda, M. R. R. (2025). MANGROVE CARBON BIOMASS POTENCY THROUGH SATELLITE IMAGE ANALYSIS IN THE EASTERN AREA OF MAUMERE BAY. Jurnal Teknologi Perikanan Dan Kelautan, 16(4), 370–383. https://doi.org/10.24319/jtpk.16.370-383

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